Accelerated testing for studying pavement design and performance (FY 2003) : evaluation of the chemical stabilized subgrade soil (CISL Experiment No. 12).

Details

• Alternative Title:
  Evaluation of the chemical stabilized subgrade soil (CISL Experiment No. 12)
• Creators:
  Romanoschi, Stefan ; Lewis, Paul ; Dumitru, Octavian ; Banda, Sathish
• Corporate Creators:
  Kansas State University. Department of Civil Engineering
• Corporate Contributors:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Subject/TRT Terms:
  • Paving
  • Asphalt pavements
  • Accelerated tests
  • Pavement design
  • Pavement performance
  • Pavement joints
  • Load transfer
  • Concrete pavements
  • Portland cement concrete
  • Strain (Mechanics)
  More +
• Publication/ Report Number:
  FHWA-KS-07-8
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Edition:
  Final report; Summer 2002-June 2003.
• Corporate Publisher:
  Kansas. Dept. of Transportation
• Abstract:
  The Midwest States Accelerated Pavement Testing Pooled Fund Program, financed by the highway departments ; of Missouri, Iowa, Kansas and Nebraska, has supported an accelerated pavement testing (APT) project to compare ; the performance of stabilized clayey embankment soil when Portland cement, fly ash, lime and a commercial ; product were used as stabilizing agents. The project aimed to improve the practices related to the design of flexible ; pavements when the top of the subgrade is improved by chemical stabilization. The experiments were conducted ; at the Civil Infrastructure Systems Laboratory (CISL) of Kansas State University. The test program consisted of ; constructing four flexible pavement structures and subjecting them to full-scale accelerated loading test. ; The study indicated that cement and lime are the most effective stabilizers for the studied soil. These stabilizers ; resulted in lower vertical compressive stresses at the top of the subgrade and lower rut depth at the pavement surface ; than the fly ash-treated soil. After more than two million axle load repetitions, the pavement with cement stabilized ; embankment soil exhibited much less surface cracking than the pavement with fly-ash stabilized embankment. ; The commercial product proved not to be effective in stabilizing the non-sulfate clayey soil used in this experiment, ; when the embankment is constructed at the same moisture content and compaction level as for the other three ; chemicals. The unconfined compression strength measured on laboratory prepared samples of soil stabilized with ; the commercial chemical compound was very similar to that of the untreated soil.
  More +
• Format:
  PDF
• Funding:
  C1355
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16516/dot_16516_DS1.pdf
• File Type:
  [PDF - 8.11 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5f0d7aee0580ef446c4d421aeac96ef7edea2ece98e812e5b3ff5e7da64e3809e2080ce999595aac7356abea0c7b505229b9e00870debcf27b690f72241377dd